Profiles
Five fillet shapes, identical across rounding and blending. Pick the one that matches the look you want.
| Profile | Curve | Best for |
|---|---|---|
| Round | Classic circular fillet | Default. Soft, even rounding. |
| Sharp | Pulls in toward the corner | Hard-surface knees, mech panels |
| Soft | Gentle, smoothly continuous | Organic forms, ergonomic surfaces |
| Tight | Squared, deep but tight | Industrial fillets, near-square edges |
| Chamfer | Flat 45° bevel | Beveled hardware, machined edges |
Round
Sharp
Soft
Tight
Chamfer
Profile keys in the modal
While the Adjust Rounding modal is active (B for primitives, Ctrl+B for boolean blends), the number keys snap between profiles instantly:
| Key | Profile |
|---|---|
1 | Round |
2 | Sharp |
3 | Soft |
4 | Tight |
5 | Chamfer |
While the modal is open, S toggles between adjusting the radius and the Chamfer Smooth parameter (only meaningful when the profile is Chamfer).
Chamfer Smooth
The Chamfer profile produces a flat 45° bevel — sharp where it meets the adjacent faces. Chamfer Smooth softens those two seam edges so the chamfer blends in instead of stopping abruptly.
- Range:
0.0–5.0(soft max0.5for primitives,1.0for blends) - Only visible when the profile is set to Chamfer
You’ll find a Chamfer Smooth control alongside every Chamfer-enabled profile setting — primitive, boolean blend, emboss inner corner, prism bevel.
Material Blend
Boolean modifiers also have a Material Blend width multiplier — independent of the geometry’s blend. It controls how the color seam spreads across the boolean:
1.0— color follows the geometry exactly (default)> 1.0— color bleeds wider than the fillet0.0— color snaps even when the geometry is smoothly blended
Useful when you want a smooth physical join between two materials but a sharp visual line between their colors, or vice versa.